src/lib/implementations/CECCommandHandler.cpp

   1 /*
   2  * This file is part of the libCEC(R) library.
   3  *
   4  * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited.  All rights reserved.
   5  * libCEC(R) is an original work, containing original code.
   6  *
   7  * libCEC(R) is a trademark of Pulse-Eight Limited.
   8  *
   9  * This program is dual-licensed; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  22  *
  23  *
  24  * Alternatively, you can license this library under a commercial license,
  25  * please contact Pulse-Eight Licensing for more information.
  26  *
  27  * For more information contact:
  28  * Pulse-Eight Licensing       <license@pulse-eight.com>
  29  *     http://www.pulse-eight.com/
  30  *     http://www.pulse-eight.net/
  31  */
  32
  33 #include "env.h"
  34 #include "CECCommandHandler.h"
  35
  36 #include "lib/devices/CECBusDevice.h"
  37 #include "lib/devices/CECAudioSystem.h"
  38 #include "lib/devices/CECPlaybackDevice.h"
  39 #include "lib/CECClient.h"
  40 #include "lib/CECProcessor.h"
  41 #include "lib/LibCEC.h"
  42 #include "lib/CECTypeUtils.h"
  43 #include "lib/platform/util/util.h"
  44
  45 using namespace CEC;
  46 using namespace std;
  47 using namespace PLATFORM;
  48
  49 #define LIB_CEC     m_busDevice->GetProcessor()->GetLib()
  50 #define ToString(p) CCECTypeUtils::ToString(p)
  51 #define REQUEST_POWER_STATUS_TIMEOUT 5000
  52
  53 CCECCommandHandler::CCECCommandHandler(CCECBusDevice *busDevice,
  54                                        int32_t iTransmitTimeout /* = CEC_DEFAULT_TRANSMIT_TIMEOUT */,
  55                                        int32_t iTransmitWait /* = CEC_DEFAULT_TRANSMIT_WAIT */,
  56                                        int8_t iTransmitRetries /* = CEC_DEFAULT_TRANSMIT_RETRIES */,
  57                                        int64_t iActiveSourcePending /* = 0 */) :
  58     m_busDevice(busDevice),
  59     m_processor(m_busDevice->GetProcessor()),
  60     m_iTransmitTimeout(iTransmitTimeout),
  61     m_iTransmitWait(iTransmitWait),
  62     m_iTransmitRetries(iTransmitRetries),
  63     m_bHandlerInited(false),
  64     m_bOPTSendDeckStatusUpdateOnActiveSource(false),
  65     m_vendorId(CEC_VENDOR_UNKNOWN),
  66     m_iActiveSourcePending(iActiveSourcePending),
  67     m_iPowerStatusRequested(0)
  68 {
  69 }
  70
  71 bool CCECCommandHandler::HandleCommand(const cec_command &command)
  72 {
  73   if (command.opcode_set == 0)
  74     return HandlePoll(command);
  75
  76   int iHandled(CEC_ABORT_REASON_UNRECOGNIZED_OPCODE);
  77
  78   LIB_CEC->AddCommand(command);
  79
  80   switch(command.opcode)
  81   {
  82   case CEC_OPCODE_REPORT_POWER_STATUS:
  83     iHandled = HandleReportPowerStatus(command);
  84     break;
  85   case CEC_OPCODE_CEC_VERSION:
  86     iHandled = HandleDeviceCecVersion(command);
  87     break;
  88   case CEC_OPCODE_SET_MENU_LANGUAGE:
  89     iHandled = HandleSetMenuLanguage(command);
  90     break;
  91   case CEC_OPCODE_GIVE_PHYSICAL_ADDRESS:
  92     iHandled = HandleGivePhysicalAddress(command);
  93     break;
  94   case CEC_OPCODE_GET_MENU_LANGUAGE:
  95     iHandled = HandleGiveMenuLanguage(command);
  96     break;
  97   case CEC_OPCODE_GIVE_OSD_NAME:
  98     iHandled = HandleGiveOSDName(command);
  99     break;
 100   case CEC_OPCODE_GIVE_DEVICE_VENDOR_ID:
 101     iHandled = HandleGiveDeviceVendorId(command);
 102     break;
 103   case CEC_OPCODE_DEVICE_VENDOR_ID:
 104     iHandled = HandleDeviceVendorId(command);
 105     break;
 106   case CEC_OPCODE_VENDOR_COMMAND_WITH_ID:
 107     iHandled = HandleDeviceVendorCommandWithId(command);
 108     break;
 109   case CEC_OPCODE_GIVE_DECK_STATUS:
 110     iHandled = HandleGiveDeckStatus(command);
 111     break;
 112   case CEC_OPCODE_DECK_CONTROL:
 113     iHandled = HandleDeckControl(command);
 114     break;
 115   case CEC_OPCODE_MENU_REQUEST:
 116     iHandled = HandleMenuRequest(command);
 117     break;
 118   case CEC_OPCODE_GIVE_DEVICE_POWER_STATUS:
 119     iHandled = HandleGiveDevicePowerStatus(command);
 120     break;
 121   case CEC_OPCODE_GET_CEC_VERSION:
 122     iHandled = HandleGetCecVersion(command);
 123     break;
 124   case CEC_OPCODE_USER_CONTROL_PRESSED:
 125     iHandled = HandleUserControlPressed(command);
 126     break;
 127   case CEC_OPCODE_USER_CONTROL_RELEASE:
 128     iHandled = HandleUserControlRelease(command);
 129     break;
 130   case CEC_OPCODE_GIVE_AUDIO_STATUS:
 131     iHandled = HandleGiveAudioStatus(command);
 132     break;
 133   case CEC_OPCODE_GIVE_SYSTEM_AUDIO_MODE_STATUS:
 134     iHandled = HandleGiveSystemAudioModeStatus(command);
 135     break;
 136   case CEC_OPCODE_SYSTEM_AUDIO_MODE_REQUEST:
 137     iHandled = HandleSystemAudioModeRequest(command);
 138     break;
 139   case CEC_OPCODE_REPORT_AUDIO_STATUS:
 140     iHandled = HandleReportAudioStatus(command);
 141     break;
 142   case CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS:
 143     iHandled = HandleSystemAudioModeStatus(command);
 144     break;
 145   case CEC_OPCODE_SET_SYSTEM_AUDIO_MODE:
 146     iHandled = HandleSetSystemAudioMode(command);
 147     break;
 148   case CEC_OPCODE_REQUEST_ACTIVE_SOURCE:
 149     iHandled = HandleRequestActiveSource(command);
 150     break;
 151   case CEC_OPCODE_SET_STREAM_PATH:
 152     iHandled = HandleSetStreamPath(command);
 153     break;
 154   case CEC_OPCODE_ROUTING_CHANGE:
 155     iHandled = HandleRoutingChange(command);
 156     break;
 157   case CEC_OPCODE_ROUTING_INFORMATION:
 158     iHandled = HandleRoutingInformation(command);
 159     break;
 160   case CEC_OPCODE_STANDBY:
 161     iHandled = HandleStandby(command);
 162     break;
 163   case CEC_OPCODE_ACTIVE_SOURCE:
 164     iHandled = HandleActiveSource(command);
 165     break;
 166   case CEC_OPCODE_REPORT_PHYSICAL_ADDRESS:
 167     iHandled = HandleReportPhysicalAddress(command);
 168     break;
 169   case CEC_OPCODE_SET_OSD_NAME:
 170     iHandled = HandleSetOSDName(command);
 171     break;
 172   case CEC_OPCODE_IMAGE_VIEW_ON:
 173     iHandled = HandleImageViewOn(command);
 174     break;
 175   case CEC_OPCODE_TEXT_VIEW_ON:
 176     iHandled = HandleTextViewOn(command);
 177     break;
 178   case CEC_OPCODE_FEATURE_ABORT:
 179     iHandled = HandleFeatureAbort(command);
 180     break;
 181   case CEC_OPCODE_VENDOR_COMMAND:
 182     iHandled = HandleVendorCommand(command);
 183     break;
 184   case CEC_OPCODE_VENDOR_REMOTE_BUTTON_DOWN:
 185     iHandled = HandleVendorRemoteButtonDown(command);
 186     break;
 187   case CEC_OPCODE_VENDOR_REMOTE_BUTTON_UP:
 188     iHandled = HandleVendorRemoteButtonUp(command);
 189     break;
 190   case CEC_OPCODE_PLAY:
 191     // libCEC (currently) doesn't need to do anything with this, since player applications handle it
 192     // but it should not respond with a feature abort
 193     iHandled = COMMAND_HANDLED;
 194     break;
 195   default:
 196     break;
 197   }
 198
 199   if (iHandled == COMMAND_HANDLED)
 200     m_busDevice->SignalOpcode((command.opcode == CEC_OPCODE_FEATURE_ABORT && command.parameters.size > 0) ? (cec_opcode)command.parameters[0] : command.opcode);
 201   else
 202     UnhandledCommand(command, (cec_abort_reason)iHandled);
 203
 204   return iHandled == COMMAND_HANDLED;
 205 }
 206
 207 int CCECCommandHandler::HandleActiveSource(const cec_command &command)
 208 {
 209   if (command.parameters.size == 2)
 210   {
 211     uint16_t iAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 212     CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iAddress);
 213     if (device)
 214     {
 215       device->MarkAsActiveSource();
 216       return COMMAND_HANDLED;
 217     }
 218   }
 219
 220   return CEC_ABORT_REASON_INVALID_OPERAND;
 221 }
 222
 223 int CCECCommandHandler::HandleDeckControl(const cec_command &command)
 224 {
 225   CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 226   if (device && command.parameters.size > 0)
 227   {
 228     device->SetDeckControlMode((cec_deck_control_mode) command.parameters[0]);
 229     return COMMAND_HANDLED;
 230   }
 231
 232   return CEC_ABORT_REASON_INVALID_OPERAND;
 233 }
 234
 235 int CCECCommandHandler::HandleDeviceCecVersion(const cec_command &command)
 236 {
 237   if (command.parameters.size == 1)
 238   {
 239     CCECBusDevice *device = GetDevice(command.initiator);
 240     if (device)
 241       device->SetCecVersion((cec_version) command.parameters[0]);
 242
 243     return COMMAND_HANDLED;
 244   }
 245
 246   return CEC_ABORT_REASON_INVALID_OPERAND;
 247 }
 248
 249 int CCECCommandHandler::HandleDeviceVendorCommandWithId(const cec_command & UNUSED(command))
 250 {
 251   return CEC_ABORT_REASON_INVALID_OPERAND;
 252 }
 253
 254 int CCECCommandHandler::HandleDeviceVendorId(const cec_command &command)
 255 {
 256   SetVendorId(command);
 257   return COMMAND_HANDLED;
 258 }
 259
 260 int CCECCommandHandler::HandleFeatureAbort(const cec_command &command)
 261 {
 262   if (command.parameters.size == 2 &&
 263         (command.parameters[1] == CEC_ABORT_REASON_UNRECOGNIZED_OPCODE ||
 264          command.parameters[1] == CEC_ABORT_REASON_REFUSED))
 265     m_processor->GetDevice(command.initiator)->SetUnsupportedFeature((cec_opcode)command.parameters[0]);
 266   return COMMAND_HANDLED;
 267 }
 268
 269 int CCECCommandHandler::HandleGetCecVersion(const cec_command &command)
 270 {
 271   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 272   {
 273     CCECBusDevice *device = GetDevice(command.destination);
 274     if (device && device->TransmitCECVersion(command.initiator, true))
 275       return COMMAND_HANDLED;
 276     return CEC_ABORT_REASON_INVALID_OPERAND;
 277   }
 278
 279   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 280 }
 281
 282 int CCECCommandHandler::HandleGiveAudioStatus(const cec_command &command)
 283 {
 284   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 285   {
 286     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 287     if (device && device->TransmitAudioStatus(command.initiator, true))
 288       return COMMAND_HANDLED;
 289     return CEC_ABORT_REASON_INVALID_OPERAND;
 290   }
 291
 292   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 293 }
 294
 295 int CCECCommandHandler::HandleGiveDeckStatus(const cec_command &command)
 296 {
 297   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 298   {
 299     CCECPlaybackDevice *device = CCECBusDevice::AsPlaybackDevice(GetDevice(command.destination));
 300     if (device && device->TransmitDeckStatus(command.initiator, true))
 301       return COMMAND_HANDLED;
 302     return CEC_ABORT_REASON_INVALID_OPERAND;
 303   }
 304
 305   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 306 }
 307
 308 int CCECCommandHandler::HandleGiveDevicePowerStatus(const cec_command &command)
 309 {
 310   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 311   {
 312     CCECBusDevice *device = GetDevice(command.destination);
 313     if (device && device->TransmitPowerState(command.initiator, true))
 314       return COMMAND_HANDLED;
 315     return CEC_ABORT_REASON_INVALID_OPERAND;
 316   }
 317
 318   return CEC_ABORT_REASON_INVALID_OPERAND;
 319 }
 320
 321 int CCECCommandHandler::HandleGiveDeviceVendorId(const cec_command &command)
 322 {
 323   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 324   {
 325     CCECBusDevice *device = GetDevice(command.destination);
 326     if (device && device->TransmitVendorID(command.initiator, true, true))
 327       return COMMAND_HANDLED;
 328   }
 329
 330   return CEC_ABORT_REASON_INVALID_OPERAND;
 331 }
 332
 333 int CCECCommandHandler::HandleGiveOSDName(const cec_command &command)
 334 {
 335   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 336   {
 337     CCECBusDevice *device = GetDevice(command.destination);
 338     if (device && device->TransmitOSDName(command.initiator, true))
 339       return COMMAND_HANDLED;
 340   }
 341
 342   return CEC_ABORT_REASON_INVALID_OPERAND;
 343 }
 344
 345 int CCECCommandHandler::HandleGivePhysicalAddress(const cec_command &command)
 346 {
 347   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 348   {
 349     CCECBusDevice *device = GetDevice(command.destination);
 350     if (device && device->TransmitPhysicalAddress(true))
 351       return COMMAND_HANDLED;
 352     return CEC_ABORT_REASON_INVALID_OPERAND;
 353   }
 354
 355   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 356 }
 357
 358 int CCECCommandHandler::HandleGiveMenuLanguage(const cec_command &command)
 359 {
 360   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 361   {
 362     CCECBusDevice *device = GetDevice(command.destination);
 363     if (device && device->TransmitSetMenuLanguage(command.initiator, true))
 364       return COMMAND_HANDLED;
 365     return CEC_ABORT_REASON_INVALID_OPERAND;
 366   }
 367
 368   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 369 }
 370
 371 int CCECCommandHandler::HandleGiveSystemAudioModeStatus(const cec_command &command)
 372 {
 373   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 374   {
 375     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 376     if (device && device->TransmitSystemAudioModeStatus(command.initiator, true))
 377       return COMMAND_HANDLED;
 378     return CEC_ABORT_REASON_INVALID_OPERAND;
 379   }
 380
 381   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 382 }
 383
 384 int CCECCommandHandler::HandleImageViewOn(const cec_command &command)
 385 {
 386   CCECBusDevice *device = GetDevice(command.destination);
 387   if (device && (device->GetCurrentStatus() == CEC_DEVICE_STATUS_PRESENT ||
 388       device->GetCurrentStatus() == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC))
 389   {
 390     if (device->GetCurrentPowerStatus() == CEC_POWER_STATUS_STANDBY ||
 391         device->GetCurrentPowerStatus() == CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY)
 392       device->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 393   }
 394   return COMMAND_HANDLED;
 395 }
 396
 397 int CCECCommandHandler::HandleMenuRequest(const cec_command &command)
 398 {
 399   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 400   {
 401     CCECBusDevice *device = GetDevice(command.destination);
 402     if (device)
 403     {
 404       CCECClient *client = device->GetClient();
 405       if (client)
 406       {
 407         if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_ACTIVATE)
 408         {
 409           if (client->MenuStateChanged(CEC_MENU_STATE_ACTIVATED) == 1)
 410             device->SetMenuState(CEC_MENU_STATE_ACTIVATED);
 411         }
 412         else if (command.parameters[0] == CEC_MENU_REQUEST_TYPE_DEACTIVATE)
 413         {
 414           if (client->MenuStateChanged(CEC_MENU_STATE_DEACTIVATED) == 1)
 415             device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 416         }
 417       }
 418       if (device->TransmitMenuState(command.initiator, true))
 419         return COMMAND_HANDLED;
 420     }
 421     return CEC_ABORT_REASON_INVALID_OPERAND;
 422   }
 423
 424   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 425 }
 426
 427 bool CCECCommandHandler::HandlePoll(const cec_command &command)
 428 {
 429   m_busDevice->HandlePoll(command.destination);
 430   return true;
 431 }
 432
 433 int CCECCommandHandler::HandleReportAudioStatus(const cec_command &command)
 434 {
 435   if (command.parameters.size == 1)
 436   {
 437     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 438     if (device)
 439     {
 440       device->SetAudioStatus(command.parameters[0]);
 441       return COMMAND_HANDLED;
 442     }
 443   }
 444   return CEC_ABORT_REASON_INVALID_OPERAND;
 445 }
 446
 447 int CCECCommandHandler::HandleReportPhysicalAddress(const cec_command &command)
 448 {
 449   if (command.parameters.size == 3)
 450   {
 451     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 452     SetPhysicalAddress(command.initiator, iNewAddress);
 453     return COMMAND_HANDLED;
 454   }
 455   return CEC_ABORT_REASON_INVALID_OPERAND;
 456 }
 457
 458 int CCECCommandHandler::HandleReportPowerStatus(const cec_command &command)
 459 {
 460   if (command.parameters.size == 1)
 461   {
 462     CCECBusDevice *device = GetDevice(command.initiator);
 463     if (device)
 464     {
 465       device->SetPowerStatus((cec_power_status) command.parameters[0]);
 466       return COMMAND_HANDLED;
 467     }
 468   }
 469   return CEC_ABORT_REASON_INVALID_OPERAND;
 470 }
 471
 472 int CCECCommandHandler::HandleRequestActiveSource(const cec_command &command)
 473 {
 474   if (m_processor->CECInitialised())
 475   {
 476     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %i requests active source", (uint8_t) command.initiator);
 477     m_processor->GetDevice(command.initiator)->SetPowerStatus(CEC_POWER_STATUS_ON);
 478
 479     vector<CCECBusDevice *> devices;
 480     for (size_t iDevicePtr = 0; iDevicePtr < GetMyDevices(devices); iDevicePtr++)
 481       devices[iDevicePtr]->TransmitActiveSource(true);
 482   }
 483
 484   return COMMAND_HANDLED;
 485 }
 486
 487 int CCECCommandHandler::HandleRoutingChange(const cec_command &command)
 488 {
 489   if (command.parameters.size == 4)
 490   {
 491     uint16_t iOldAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 492     uint16_t iNewAddress = ((uint16_t)command.parameters[2] << 8) | ((uint16_t)command.parameters[3]);
 493
 494     CCECBusDevice *device = GetDevice(command.initiator);
 495     if (device)
 496     {
 497       device->SetStreamPath(iNewAddress, iOldAddress);
 498       return COMMAND_HANDLED;
 499     }
 500   }
 501
 502   return CEC_ABORT_REASON_INVALID_OPERAND;
 503 }
 504
 505 int CCECCommandHandler::HandleRoutingInformation(const cec_command &command)
 506 {
 507   if (command.parameters.size == 2)
 508   {
 509     uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 510     CCECBusDevice *device = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 511     if (device)
 512     {
 513       device->MarkAsActiveSource();
 514       return COMMAND_HANDLED;
 515     }
 516   }
 517
 518   return CEC_ABORT_REASON_INVALID_OPERAND;
 519 }
 520
 521 int CCECCommandHandler::HandleSetMenuLanguage(const cec_command &command)
 522 {
 523   if (command.parameters.size == 3)
 524   {
 525     CCECBusDevice *device = GetDevice(command.initiator);
 526     if (device)
 527     {
 528       cec_menu_language language;
 529       language.device = command.initiator;
 530       for (uint8_t iPtr = 0; iPtr < 4; iPtr++)
 531         language.language[iPtr] = command.parameters[iPtr];
 532       language.language[3] = 0;
 533       device->SetMenuLanguage(language);
 534       return COMMAND_HANDLED;
 535     }
 536   }
 537
 538   return CEC_ABORT_REASON_INVALID_OPERAND;
 539 }
 540
 541 int CCECCommandHandler::HandleSetOSDName(const cec_command &command)
 542 {
 543   if (command.parameters.size > 0)
 544   {
 545     CCECBusDevice *device = GetDevice(command.initiator);
 546     if (device)
 547     {
 548       char buf[1024];
 549       for (uint8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
 550         buf[iPtr] = (char)command.parameters[iPtr];
 551       buf[command.parameters.size] = 0;
 552
 553       CStdString strName(buf);
 554       device->SetOSDName(strName);
 555
 556       return COMMAND_HANDLED;
 557     }
 558   }
 559
 560   return CEC_ABORT_REASON_INVALID_OPERAND;
 561 }
 562
 563 int CCECCommandHandler::HandleSetStreamPath(const cec_command &command)
 564 {
 565   if (!m_processor->CECInitialised())
 566     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 567
 568   if (command.parameters.size >= 2)
 569   {
 570     uint16_t iStreamAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 571     LIB_CEC->AddLog(CEC_LOG_DEBUG, ">> %s (%x) sets stream path to physical address %04x", ToString(command.initiator), command.initiator, iStreamAddress);
 572
 573     // a device will only change the stream path when it's powered on
 574     m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
 575
 576     /* one of the device handled by libCEC has been made active */
 577     CCECBusDevice *device = GetDeviceByPhysicalAddress(iStreamAddress);
 578     if (device && device->IsHandledByLibCEC())
 579     {
 580       device->ActivateSource();
 581       return COMMAND_HANDLED;
 582     }
 583   }
 584
 585   return CEC_ABORT_REASON_INVALID_OPERAND;
 586 }
 587
 588 int CCECCommandHandler::HandleSystemAudioModeRequest(const cec_command &command)
 589 {
 590   if (m_processor->CECInitialised() && m_processor->IsHandledByLibCEC(command.destination))
 591   {
 592     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.destination));
 593     if (device)
 594     {
 595       if (command.parameters.size >= 2)
 596       {
 597         device->SetPowerStatus(CEC_POWER_STATUS_ON);
 598         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_ON);
 599         uint16_t iNewAddress = ((uint16_t)command.parameters[0] << 8) | ((uint16_t)command.parameters[1]);
 600         CCECBusDevice *newActiveDevice = GetDeviceByPhysicalAddress(iNewAddress);
 601         if (newActiveDevice)
 602           newActiveDevice->MarkAsActiveSource();
 603         if (device->TransmitSetSystemAudioMode(command.initiator, true))
 604           return COMMAND_HANDLED;
 605       }
 606       else
 607       {
 608         device->SetSystemAudioModeStatus(CEC_SYSTEM_AUDIO_STATUS_OFF);
 609         if (device->TransmitSetSystemAudioMode(command.initiator, true))
 610           return COMMAND_HANDLED;
 611       }
 612     }
 613   }
 614
 615   return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 616 }
 617
 618 int CCECCommandHandler::HandleStandby(const cec_command &command)
 619 {
 620   CCECBusDevice *device = GetDevice(command.initiator);
 621   if (device)
 622     device->SetPowerStatus(CEC_POWER_STATUS_STANDBY);
 623
 624   return COMMAND_HANDLED;
 625 }
 626
 627 int CCECCommandHandler::HandleSystemAudioModeStatus(const cec_command &command)
 628 {
 629   if (command.parameters.size == 1)
 630   {
 631     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 632     if (device)
 633     {
 634       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 635       return COMMAND_HANDLED;
 636     }
 637   }
 638
 639   return CEC_ABORT_REASON_INVALID_OPERAND;
 640 }
 641
 642 int CCECCommandHandler::HandleSetSystemAudioMode(const cec_command &command)
 643 {
 644   if (command.parameters.size == 1)
 645   {
 646     CCECAudioSystem *device = CCECBusDevice::AsAudioSystem(GetDevice(command.initiator));
 647     if (device)
 648     {
 649       device->SetSystemAudioModeStatus((cec_system_audio_status)command.parameters[0]);
 650       return COMMAND_HANDLED;
 651     }
 652   }
 653
 654   return CEC_ABORT_REASON_INVALID_OPERAND;
 655 }
 656
 657 int CCECCommandHandler::HandleTextViewOn(const cec_command &command)
 658 {
 659   m_processor->GetDevice(command.initiator)->MarkAsActiveSource();
 660   return COMMAND_HANDLED;
 661 }
 662
 663 int CCECCommandHandler::HandleUserControlPressed(const cec_command &command)
 664 {
 665   if (!m_processor->CECInitialised() ||
 666       !m_processor->IsHandledByLibCEC(command.destination))
 667     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 668
 669   if (command.parameters.size == 0)
 670     return CEC_ABORT_REASON_INVALID_OPERAND;
 671
 672   CCECBusDevice *device = GetDevice(command.destination);
 673   if (!device)
 674     return CEC_ABORT_REASON_INVALID_OPERAND;
 675
 676   CCECClient *client = device->GetClient();
 677   if (client)
 678     client->SetCurrentButton((cec_user_control_code) command.parameters[0]);
 679
 680   if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER ||
 681       command.parameters[0] == CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION)
 682   {
 683     bool bPowerOn(true);
 684
 685     // CEC_USER_CONTROL_CODE_POWER operates as a toggle
 686     // assume CEC_USER_CONTROL_CODE_POWER_ON_FUNCTION does not
 687     if (command.parameters[0] == CEC_USER_CONTROL_CODE_POWER)
 688     {
 689       cec_power_status status = device->GetCurrentPowerStatus();
 690       bPowerOn = !(status == CEC_POWER_STATUS_ON || status == CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 691     }
 692
 693     if (bPowerOn)
 694     {
 695       device->ActivateSource();
 696     }
 697     else
 698     {
 699       device->MarkAsInactiveSource();
 700       device->TransmitInactiveSource();
 701       device->SetMenuState(CEC_MENU_STATE_DEACTIVATED);
 702     }
 703   }
 704
 705   return COMMAND_HANDLED;
 706 }
 707
 708 int CCECCommandHandler::HandleUserControlRelease(const cec_command &command)
 709 {
 710   if (!m_processor->CECInitialised() ||
 711       !m_processor->IsHandledByLibCEC(command.destination))
 712     return CEC_ABORT_REASON_NOT_IN_CORRECT_MODE_TO_RESPOND;
 713
 714   CCECClient *client = m_processor->GetClient(command.destination);
 715   if (client)
 716     client->AddKey();
 717
 718   return COMMAND_HANDLED;
 719 }
 720
 721 int CCECCommandHandler::HandleVendorCommand(const cec_command & UNUSED(command))
 722 {
 723   return CEC_ABORT_REASON_INVALID_OPERAND;
 724 }
 725
 726 void CCECCommandHandler::UnhandledCommand(const cec_command &command, const cec_abort_reason reason)
 727 {
 728   if (m_processor->IsHandledByLibCEC(command.destination))
 729   {
 730     LIB_CEC->AddLog(CEC_LOG_DEBUG, "sending abort with opcode %02x and reason '%s' to %s", command.opcode, ToString(reason), ToString(command.initiator));
 731     m_processor->TransmitAbort(command.destination, command.initiator, command.opcode, reason);
 732   }
 733 }
 734
 735 size_t CCECCommandHandler::GetMyDevices(vector<CCECBusDevice *> &devices) const
 736 {
 737   size_t iReturn(0);
 738
 739   cec_logical_addresses addresses = m_processor->GetLogicalAddresses();
 740   for (uint8_t iPtr = CECDEVICE_TV; iPtr < CECDEVICE_BROADCAST; iPtr++)
 741   {
 742     if (addresses[iPtr])
 743     {
 744       devices.push_back(GetDevice((cec_logical_address) iPtr));
 745       ++iReturn;
 746     }
 747   }
 748
 749   return iReturn;
 750 }
 751
 752 CCECBusDevice *CCECCommandHandler::GetDevice(cec_logical_address iLogicalAddress) const
 753 {
 754   return m_processor->GetDevice(iLogicalAddress);
 755 }
 756
 757 CCECBusDevice *CCECCommandHandler::GetDeviceByPhysicalAddress(uint16_t iPhysicalAddress) const
 758 {
 759   return m_processor->GetDeviceByPhysicalAddress(iPhysicalAddress);
 760 }
 761
 762 bool CCECCommandHandler::SetVendorId(const cec_command &command)
 763 {
 764   bool bChanged(false);
 765   if (command.parameters.size < 3)
 766   {
 767     LIB_CEC->AddLog(CEC_LOG_WARNING, "invalid vendor ID received");
 768     return bChanged;
 769   }
 770
 771   uint64_t iVendorId = ((uint64_t)command.parameters[0] << 16) +
 772                        ((uint64_t)command.parameters[1] << 8) +
 773                         (uint64_t)command.parameters[2];
 774
 775   CCECBusDevice *device = GetDevice((cec_logical_address) command.initiator);
 776   if (device)
 777     bChanged = device->SetVendorId(iVendorId);
 778   return bChanged;
 779 }
 780
 781 void CCECCommandHandler::SetPhysicalAddress(cec_logical_address iAddress, uint16_t iNewAddress)
 782 {
 783   if (!m_processor->IsHandledByLibCEC(iAddress))
 784   {
 785     CCECBusDevice *otherDevice = m_processor->GetDeviceByPhysicalAddress(iNewAddress);
 786     CCECClient *client = otherDevice ? otherDevice->GetClient() : NULL;
 787
 788     CCECBusDevice *device = m_processor->GetDevice(iAddress);
 789     if (device)
 790       device->SetPhysicalAddress(iNewAddress);
 791     else
 792     {
 793       LIB_CEC->AddLog(CEC_LOG_DEBUG, "device with logical address %X not found", iAddress);
 794     }
 795
 796     /* another device reported the same physical address as ours */
 797     if (client)
 798       client->ResetPhysicalAddress();
 799   }
 800   else
 801   {
 802     LIB_CEC->AddLog(CEC_LOG_DEBUG, "ignore physical address report for device %s (%X) because it's marked as handled by libCEC", ToString(iAddress), iAddress);
 803   }
 804 }
 805
 806 bool CCECCommandHandler::PowerOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 807 {
 808   if (iDestination == CECDEVICE_TV)
 809     return TransmitImageViewOn(iInitiator, iDestination);
 810
 811   return TransmitKeypress(iInitiator, iDestination, CEC_USER_CONTROL_CODE_POWER) &&
 812     TransmitKeyRelease(iInitiator, iDestination);
 813 }
 814
 815 bool CCECCommandHandler::TransmitImageViewOn(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 816 {
 817   cec_command command;
 818   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_IMAGE_VIEW_ON);
 819
 820   if (Transmit(command, false, false))
 821   {
 822     CCECBusDevice* dest = m_processor->GetDevice(iDestination);
 823     if (dest && dest->GetCurrentPowerStatus() != CEC_POWER_STATUS_ON)
 824       dest->SetPowerStatus(CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON);
 825     return true;
 826   }
 827   return false;
 828 }
 829
 830 bool CCECCommandHandler::TransmitStandby(const cec_logical_address iInitiator, const cec_logical_address iDestination)
 831 {
 832   cec_command command;
 833   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_STANDBY);
 834
 835   return Transmit(command, false, false);
 836 }
 837
 838 bool CCECCommandHandler::TransmitRequestActiveSource(const cec_logical_address iInitiator, bool bWaitForResponse /* = true */)
 839 {
 840   cec_command command;
 841   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REQUEST_ACTIVE_SOURCE);
 842
 843   return Transmit(command, !bWaitForResponse, false);
 844 }
 845
 846 bool CCECCommandHandler::TransmitRequestCecVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 847 {
 848   cec_command command;
 849   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_CEC_VERSION);
 850
 851   return Transmit(command, !bWaitForResponse, false);
 852 }
 853
 854 bool CCECCommandHandler::TransmitRequestMenuLanguage(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 855 {
 856   cec_command command;
 857   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GET_MENU_LANGUAGE);
 858
 859   return Transmit(command, !bWaitForResponse, false);
 860 }
 861
 862 bool CCECCommandHandler::TransmitRequestOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 863 {
 864   cec_command command;
 865   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_OSD_NAME);
 866
 867   return Transmit(command, !bWaitForResponse, false);
 868 }
 869
 870 bool CCECCommandHandler::TransmitRequestPhysicalAddress(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 871 {
 872   cec_command command;
 873   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_PHYSICAL_ADDRESS);
 874
 875   return Transmit(command, !bWaitForResponse, false);
 876 }
 877
 878 bool CCECCommandHandler::TransmitRequestPowerStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 879 {
 880   if (iDestination == CECDEVICE_TV)
 881   {
 882     int64_t now(GetTimeMs());
 883     if (now - m_iPowerStatusRequested < REQUEST_POWER_STATUS_TIMEOUT)
 884       return true;
 885     m_iPowerStatusRequested = now;
 886   }
 887
 888   LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting power status of '%s' (%X)", m_busDevice->GetLogicalAddressName(), iDestination);
 889
 890   cec_command command;
 891   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_POWER_STATUS);
 892
 893   return Transmit(command, !bWaitForResponse, false);
 894 }
 895
 896 bool CCECCommandHandler::TransmitRequestVendorId(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWaitForResponse /* = true */)
 897 {
 898   cec_command command;
 899   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_GIVE_DEVICE_VENDOR_ID);
 900
 901   return Transmit(command, !bWaitForResponse, false);
 902 }
 903
 904 bool CCECCommandHandler::TransmitActiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, bool bIsReply)
 905 {
 906   cec_command command;
 907   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_ACTIVE_SOURCE);
 908   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 909   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 910
 911   return Transmit(command, false, bIsReply);
 912 }
 913
 914 bool CCECCommandHandler::TransmitCECVersion(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_version cecVersion, bool bIsReply)
 915 {
 916   cec_command command;
 917   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_CEC_VERSION);
 918   command.parameters.PushBack((uint8_t)cecVersion);
 919
 920   return Transmit(command, false, bIsReply);
 921 }
 922
 923 bool CCECCommandHandler::TransmitInactiveSource(const cec_logical_address iInitiator, uint16_t iPhysicalAddress)
 924 {
 925   cec_command command;
 926   cec_command::Format(command, iInitiator, CECDEVICE_TV, CEC_OPCODE_INACTIVE_SOURCE);
 927   command.parameters.PushBack((iPhysicalAddress >> 8) & 0xFF);
 928   command.parameters.PushBack(iPhysicalAddress & 0xFF);
 929
 930   return Transmit(command, false, false);
 931 }
 932
 933 bool CCECCommandHandler::TransmitMenuState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_menu_state menuState, bool bIsReply)
 934 {
 935   cec_command command;
 936   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_MENU_STATUS);
 937   command.parameters.PushBack((uint8_t)menuState);
 938
 939   return Transmit(command, false, bIsReply);
 940 }
 941
 942 bool CCECCommandHandler::TransmitOSDName(const cec_logical_address iInitiator, const cec_logical_address iDestination, std::string strDeviceName, bool bIsReply)
 943 {
 944   cec_command command;
 945   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_NAME);
 946   for (size_t iPtr = 0; iPtr < strDeviceName.length(); iPtr++)
 947     command.parameters.PushBack(strDeviceName.at(iPtr));
 948
 949   return Transmit(command, false, bIsReply);
 950 }
 951
 952 bool CCECCommandHandler::TransmitOSDString(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_display_control duration, const char *strMessage, bool bIsReply)
 953 {
 954   cec_command command;
 955   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_OSD_STRING);
 956   command.parameters.PushBack((uint8_t)duration);
 957
 958   size_t iLen = strlen(strMessage);
 959   if (iLen > 13) iLen = 13;
 960
 961   for (size_t iPtr = 0; iPtr < iLen; iPtr++)
 962     command.parameters.PushBack(strMessage[iPtr]);
 963
 964   return Transmit(command, false, bIsReply);
 965 }
 966
 967 bool CCECCommandHandler::TransmitPhysicalAddress(const cec_logical_address iInitiator, uint16_t iPhysicalAddress, cec_device_type type, bool bIsReply)
 968 {
 969   cec_command command;
 970   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_REPORT_PHYSICAL_ADDRESS);
 971   command.parameters.PushBack((uint8_t) ((iPhysicalAddress >> 8) & 0xFF));
 972   command.parameters.PushBack((uint8_t) (iPhysicalAddress & 0xFF));
 973   command.parameters.PushBack((uint8_t) (type));
 974
 975   return Transmit(command, false, bIsReply);
 976 }
 977
 978 bool CCECCommandHandler::TransmitSetMenuLanguage(const cec_logical_address iInitiator, const char lang[3], bool bIsReply)
 979 {
 980   cec_command command;
 981   command.Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_SET_MENU_LANGUAGE);
 982   command.parameters.PushBack((uint8_t) lang[0]);
 983   command.parameters.PushBack((uint8_t) lang[1]);
 984   command.parameters.PushBack((uint8_t) lang[2]);
 985
 986   return Transmit(command, false, bIsReply);
 987 }
 988
 989 bool CCECCommandHandler::TransmitPoll(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bIsReply)
 990 {
 991   cec_command command;
 992   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_NONE);
 993
 994   return Transmit(command, false, bIsReply);
 995 }
 996
 997 bool CCECCommandHandler::TransmitPowerState(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_power_status state, bool bIsReply)
 998 {
 999   cec_command command;
1000   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_POWER_STATUS);
1001   command.parameters.PushBack((uint8_t) state);
1002
1003   return Transmit(command, false, bIsReply);
1004 }
1005
1006 bool CCECCommandHandler::TransmitVendorID(const cec_logical_address iInitiator, uint64_t iVendorId, bool bIsReply)
1007 {
1008   cec_command command;
1009   cec_command::Format(command, iInitiator, CECDEVICE_BROADCAST, CEC_OPCODE_DEVICE_VENDOR_ID);
1010
1011   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 16) & 0xFF));
1012   command.parameters.PushBack((uint8_t) (((uint64_t)iVendorId >> 8) & 0xFF));
1013   command.parameters.PushBack((uint8_t) ((uint64_t)iVendorId & 0xFF));
1014
1015   return Transmit(command, false, bIsReply);
1016 }
1017
1018 bool CCECCommandHandler::TransmitAudioStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, uint8_t state, bool bIsReply)
1019 {
1020   cec_command command;
1021   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_REPORT_AUDIO_STATUS);
1022   command.parameters.PushBack(state);
1023
1024   return Transmit(command, false, bIsReply);
1025 }
1026
1027 bool CCECCommandHandler::TransmitSetSystemAudioMode(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1028 {
1029   cec_command command;
1030   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SET_SYSTEM_AUDIO_MODE);
1031   command.parameters.PushBack((uint8_t)state);
1032
1033   return Transmit(command, false, bIsReply);
1034 }
1035
1036 bool CCECCommandHandler::TransmitSetStreamPath(uint16_t iStreamPath, bool bIsReply)
1037 {
1038   if (m_busDevice->GetLogicalAddress() != CECDEVICE_TV)
1039   {
1040     LIB_CEC->AddLog(CEC_LOG_ERROR, "only the TV is allowed to send CEC_OPCODE_SET_STREAM_PATH");
1041     return false;
1042   }
1043   cec_command command;
1044   cec_command::Format(command, m_busDevice->GetLogicalAddress(), CECDEVICE_BROADCAST, CEC_OPCODE_SET_STREAM_PATH);
1045   command.parameters.PushBack((uint8_t) ((iStreamPath >> 8) & 0xFF));
1046   command.parameters.PushBack((uint8_t) (iStreamPath        & 0xFF));
1047
1048   return Transmit(command, false, bIsReply);
1049 }
1050
1051 bool CCECCommandHandler::TransmitSystemAudioModeStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_system_audio_status state, bool bIsReply)
1052 {
1053   cec_command command;
1054   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_SYSTEM_AUDIO_MODE_STATUS);
1055   command.parameters.PushBack((uint8_t)state);
1056
1057   return Transmit(command, false, bIsReply);
1058 }
1059
1060 bool CCECCommandHandler::TransmitDeckStatus(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_deck_info state, bool bIsReply)
1061 {
1062   cec_command command;
1063   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_DECK_STATUS);
1064   command.PushBack((uint8_t)state);
1065
1066   return Transmit(command, false, bIsReply);
1067 }
1068
1069 bool CCECCommandHandler::TransmitKeypress(const cec_logical_address iInitiator, const cec_logical_address iDestination, cec_user_control_code key, bool bWait /* = true */)
1070 {
1071   cec_command command;
1072   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_PRESSED);
1073   command.parameters.PushBack((uint8_t)key);
1074
1075   return Transmit(command, !bWait, false);
1076 }
1077
1078 bool CCECCommandHandler::TransmitKeyRelease(const cec_logical_address iInitiator, const cec_logical_address iDestination, bool bWait /* = true */)
1079 {
1080   cec_command command;
1081   cec_command::Format(command, iInitiator, iDestination, CEC_OPCODE_USER_CONTROL_RELEASE);
1082
1083   return Transmit(command, !bWait, false);
1084 }
1085
1086 bool CCECCommandHandler::Transmit(cec_command &command, bool bSuppressWait, bool bIsReply)
1087 {
1088   bool bReturn(false);
1089   cec_opcode expectedResponse(cec_command::GetResponseOpcode(command.opcode));
1090   bool bExpectResponse(expectedResponse != CEC_OPCODE_NONE && !bSuppressWait);
1091   command.transmit_timeout = m_iTransmitTimeout;
1092
1093   if (command.initiator == CECDEVICE_UNKNOWN)
1094   {
1095     LIB_CEC->AddLog(CEC_LOG_ERROR, "not transmitting a command without a valid initiator");
1096     return bReturn;
1097   }
1098
1099   // check whether the destination is not marked as not present or handled by libCEC
1100   if (command.destination != CECDEVICE_BROADCAST && command.opcode_set)
1101   {
1102     CCECBusDevice* destinationDevice = m_processor->GetDevice(command.destination);
1103     cec_bus_device_status status = destinationDevice ? destinationDevice->GetStatus() : CEC_DEVICE_STATUS_NOT_PRESENT;
1104     if (status == CEC_DEVICE_STATUS_NOT_PRESENT)
1105     {
1106       LIB_CEC->AddLog(CEC_LOG_DEBUG, "not sending command '%s': destination device '%s' marked as not present", ToString(command.opcode),ToString(command.destination));
1107       return bReturn;
1108     }
1109     else if (status == CEC_DEVICE_STATUS_HANDLED_BY_LIBCEC)
1110     {
1111       LIB_CEC->AddLog(CEC_LOG_DEBUG, "not sending command '%s': destination device '%s' marked as handled by libCEC", ToString(command.opcode),ToString(command.destination));
1112       return bReturn;
1113     }
1114   }
1115
1116   {
1117     uint8_t iTries(0), iMaxTries(!command.opcode_set ? 1 : m_iTransmitRetries + 1);
1118     while (!bReturn && ++iTries <= iMaxTries && !m_busDevice->IsUnsupportedFeature(command.opcode))
1119     {
1120       if ((bReturn = m_processor->Transmit(command, bIsReply)) == true)
1121       {
1122 #ifdef CEC_DEBUGGING
1123         LIB_CEC->AddLog(CEC_LOG_DEBUG, "command transmitted");
1124 #endif
1125         if (bExpectResponse)
1126         {
1127           bReturn = m_busDevice->WaitForOpcode(expectedResponse);
1128           LIB_CEC->AddLog(CEC_LOG_DEBUG, bReturn ? "expected response received (%X: %s)" : "expected response not received (%X: %s)", (int)expectedResponse, ToString(expectedResponse));
1129         }
1130       }
1131     }
1132   }
1133
1134   return bReturn;
1135 }
1136
1137 bool CCECCommandHandler::ActivateSource(bool bTransmitDelayedCommandsOnly /* = false */)
1138 {
1139   if (m_busDevice->IsActiveSource() &&
1140       m_busDevice->IsHandledByLibCEC())
1141   {
1142     {
1143       CLockObject lock(m_mutex);
1144       // check if we need to send a delayed source switch
1145       if (bTransmitDelayedCommandsOnly)
1146       {
1147         if (m_iActiveSourcePending == 0 || GetTimeMs() < m_iActiveSourcePending)
1148           return false;
1149
1150 #ifdef CEC_DEBUGGING
1151         LIB_CEC->AddLog(CEC_LOG_DEBUG, "transmitting delayed activate source command");
1152 #endif
1153       }
1154     }
1155
1156     // update the power state and menu state
1157     if (!bTransmitDelayedCommandsOnly)
1158     {
1159       m_busDevice->SetPowerStatus(CEC_POWER_STATUS_ON);
1160       m_busDevice->SetMenuState(CEC_MENU_STATE_ACTIVATED);
1161     }
1162
1163     // vendor specific hook
1164     VendorPreActivateSourceHook();
1165
1166     // power on the TV
1167     CCECBusDevice* tv = m_processor->GetDevice(CECDEVICE_TV);
1168     bool bTvPresent = (tv && tv->GetStatus() == CEC_DEVICE_STATUS_PRESENT);
1169     bool bActiveSourceFailed(false);
1170     if (bTvPresent)
1171     {
1172       if (tv->GetCurrentPowerStatus() != CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON)
1173         bActiveSourceFailed = !m_busDevice->TransmitImageViewOn();
1174     }
1175     else
1176       LIB_CEC->AddLog(CEC_LOG_DEBUG, "TV not present, not sending 'image view on'");
1177
1178     // check if we're allowed to switch sources
1179     bool bSourceSwitchAllowed = SourceSwitchAllowed();
1180     if (!bSourceSwitchAllowed)
1181       LIB_CEC->AddLog(CEC_LOG_DEBUG, "source switch is currently not allowed by command handler");
1182
1183     // switch sources (if allowed)
1184     if (!bActiveSourceFailed && bSourceSwitchAllowed)
1185     {
1186       bActiveSourceFailed = !m_busDevice->TransmitActiveSource(false);
1187       if (bTvPresent && !bActiveSourceFailed)
1188         bActiveSourceFailed = !m_busDevice->TransmitMenuState(CECDEVICE_TV, false);
1189
1190       // update the deck status for playback devices
1191       if (bTvPresent && !bActiveSourceFailed)
1192       {
1193         CCECPlaybackDevice *playbackDevice = m_busDevice->AsPlaybackDevice();
1194         if (playbackDevice && SendDeckStatusUpdateOnActiveSource())
1195           bActiveSourceFailed = !playbackDevice->TransmitDeckStatus(CECDEVICE_TV, false);
1196       }
1197     }
1198
1199     // retry later
1200     if (bActiveSourceFailed || !bSourceSwitchAllowed)
1201     {
1202       LIB_CEC->AddLog(CEC_LOG_DEBUG, "failed to make '%s' the active source. will retry later", m_busDevice->GetLogicalAddressName());
1203       int64_t now(GetTimeMs());
1204       CLockObject lock(m_mutex);
1205       if (m_iActiveSourcePending == 0 || m_iActiveSourcePending < now)
1206         m_iActiveSourcePending = now + (int64_t)CEC_ACTIVE_SOURCE_SWITCH_RETRY_TIME_MS;
1207       return false;
1208     }
1209     else
1210     {
1211       CLockObject lock(m_mutex);
1212       // clear previous pending active source command
1213       m_iActiveSourcePending = 0;
1214     }
1215
1216     // mark the handler as initialised
1217     CLockObject lock(m_mutex);
1218     m_bHandlerInited = true;
1219   }
1220   return true;
1221 }
1222
1223 void CCECCommandHandler::ScheduleActivateSource(uint64_t iDelay)
1224 {
1225   CLockObject lock(m_mutex);
1226   m_iActiveSourcePending = GetTimeMs() + iDelay;
1227 }